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Tomei J/B Turbocharger Kit Arms EJ SINGLE SCROLL

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Product details

Management number 206294627 Release Date 2025/10/31 List Price $426.30 Model Number 206294627
Category

J/B Turbocharger Kit Arms 

Category  Engine  Parts Number 
MX7760 EJ SINGLE SCROLL EJ20;EJ25 TB401A-SB01A
MX7960 EJ SINGLE SCROLL EJ20;EJ25 TB401A-SB01B
MX8265 EJ SINGLE SCROLL EJ20;EJ25 TB401A-SB01C
MX7960F EJ SINGLE SCROLL EJ20;EJ25 TB401A-SB01D

 

Descriptions:

1. TB401A-SB01A

The new Tomei ARMS Mx-Series Turbocharger improves upons Tomei's original M-Series turbocharger design with the inroduction of a new lightweight billet wheel, multi rate billet actuator, and the very same ARMS technology Tomei is known for!

The Tomei ARMS Mx8265 Turbocharger kit for the EJ20/25 is a 380HP capable kit

CNC Billet Compressor Wheel

The newly designed Billet Compressor Wheel offers significant improvement over traditional cast compressor wheels. Machined from aerospace grade materials, these highly durable lightweight compressor wheels feature thinner blades with a larger surface care for significantly improved airflow and turbo spool.

Multi Range Billet Actuator

A large capacity multi rate billet actuator is utilized, with a reinforced forged billet construction. Includes a total of 6 springs for fine boost adjustments. Up to 3 springs can be combined to find the perfect setup. Swivel type nipple allows for greater freedom when routing hoses.

Compressor Wheel

  • (A) IND (mm) : 52.6
  • (B) ExD (mm) : 68.0
  • Trim : 60
  • Blades : 6
  • Material : A2618
  • Production : CNC Billet

Turbine Wheel

  • (C) ExD (mm) : 49.1
  • (D) IND (mm) : 56.0
  • Trim : 77
  • Blades : 12
  • Material : K418
  • Production : Cast

Compressor Housing

  • IND (mm) : 53.6
  • ExD (mm) : 41.63

Turbine Housing

  • IND : 45.0
  • ExD : EJ
  • A/R : 0.57

Initial Boost Setting

  • 1.0kgf/cm2

Fitment

  • Subaru WRx | STI 02-22

2. TB401A-SB01B

The new Tomei ARMS Mx-Series Turbocharger improves upons Tomei's original M-Series turbocharger design with the inroduction of a new lightweight billet wheel, multi rate billet actuator, and the very same ARMS technology Tomei is known for!

The Tomei ARMS Mx8265 Turbocharger kit for the EJ20/25 is a 400HP capable kit

CNC Billet Compressor Wheel

The newly designed Billet Compressor Wheel offers significant improvement over traditional cast compressor wheels. Machined from aerospace grade materials, these highly durable lightweight compressor wheels feature thinner blades with a larger surface care for significantly improved airflow and turbo spool.

Multi Range Billet Actuator

A large capacity multi rate billet actuator is utilized, with a reinforced forged billet construction. Includes a total of 6 springs for fine boost adjustments. Up to 3 springs can be combined to find the perfect setup. Swivel type nipple allows for greater freedom when routing hoses.

Compressor Wheel

  • (A) IND (mm) : 52.6
  • (B) ExD (mm) : 68.0
  • Trim : 60
  • Blades : 6
  • Material : A2618
  • Production : CNC Billet

Turbine Wheel

  • (C) ExD (mm) : 54
  • (D) IND (mm) : 61
  • Trim : 79
  • Blades : 11
  • Material : K418
  • Production : Cast

Compressor Housing

  • IND (mm) : 53.6
  • ExD (mm) : 41.63

Turbine Housing

  • IND : 45.0
  • ExD : EJ
  • A/R : 0.57

Initial Boost Setting

  • 1.0kgf/cm2

Fitment

  • Subaru WRx | STI 02-22

3. TB401A-SB01C

The new Tomei ARMS Mx-Series Turbocharger improves upons Tomei's original M-Series turbocharger design with the inroduction of a new lightweight billet wheel, multi rate billet actuator, and the very same ARMS technology Tomei is known for!

The Tomei ARMS Mx8265 Turbocharger kit for the EJ20/25 is a 450HP capable kit

CNC Billet Compressor Wheel

The newly designed Billet Compressor Wheel offers significant improvement over traditional cast compressor wheels. Machined from aerospace grade materials, these highly durable lightweight compressor wheels feature thinner blades with a larger surface care for significantly improved airflow and turbo spool.

Multi Range Billet Actuator

A large capacity multi rate billet actuator is utilized, with a reinforced forged billet construction. Includes a total of 6 springs for fine boost adjustments. Up to 3 springs can be combined to find the perfect setup. Swivel type nipple allows for greater freedom when routing hoses.

Compressor Wheel

  • (A) IND (mm) : 54.8
  • (B) ExD (mm) : 76.2
  • Trim : 52
  • Blades : 6
  • Material : A2618
  • Production : CNC Billet

Turbine Wheel

  • (C) ExD (mm) : 58.8
  • (D) IND (mm) : 67.0
  • Trim : 77
  • Blades : 11
  • Material : K418
  • Production : Cast

Compressor Housing

  • IND (mm) : 55.8
  • ExD (mm) : 44.2

Turbine Housing

  • IND : 41.5
  • ExD : EJ
  • A/R : 0.57

Initial Boost Setting

  • 1.0kgf/cm2

Fitment

  • Subaru WRx | STI 02-22

4. TB401A-SB01D

The new Tomei ARMS Mx-Series Turbocharger improves upons Tomei's original M-Series turbocharger design with the inroduction of a new lightweight billet wheel, multi rate billet actuator, and the very same ARMS technology Tomei is known for!

The Tomei ARMS Mx7960F Turbocharger kit for the EJ20/25 Non STI is a 400HP capable kit

CNC Billet Compressor Wheel

The newly designed Billet Compressor Wheel offers significant improvement over traditional cast compressor wheels. Machined from aerospace grade materials, these highly durable lightweight compressor wheels feature thinner blades with a larger surface care for significantly improved airflow and turbo spool.

Multi Range Billet Actuator

A large capacity multi rate billet actuator is utilized, with a reinforced forged billet construction. Includes a total of 6 springs for fine boost adjustments. Up to 3 springs can be combined to find the perfect setup. Swivel type nipple allows for greater freedom when routing hoses.

Compressor Wheel

  • (A) IND (mm) : 52.6
  • (B) ExD (mm) : 68.0
  • Trim : 60
  • Blades : 6
  • Material : A2618
  • Production : CNC Billet

Turbine Wheel

  • (C) ExD (mm) : 54
  • (D) IND (mm) : 61.0
  • Trim : 79
  • Blades : 11
  • Material : K418
  • Production : Cast

Compressor Housing

  • IND (mm) : 53.46
  • ExD (mm) : 44.2

Turbine Housing

  • IND : 45.0
  • ExD : EJ
  • A/R : 0.57

Initial Boost Setting

  • 1.0kgf/cm2

Fitment

  • Subaru WRx 02-22

*** Note(s)

  • All images are representational only, actual wheels may differ slightly.

 *** Proposition 65

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